{{col-begin|width=70%}}: start table with specific width. {{col-break|width=66%}}: start column-1 as 66% wide. This is text in column-1. {{col-break|width=33%}}: start column-2 as 33% wide. This is text in column-2. {{col-end}}
The table will have two columns, with column 1 twice (2×) the width of column 2.
A border of 2px (1px width on each side) corresponds to a 5%. Therefore, with a 2px border, the width needs to be 95% for the table to fit within the screen. Since it's possible that some tables might not have a border, correction on the individual page could be made after substitution. Another way to create a two column table is like this:
{{col-begin|width=95%}}
|-
|
Left column
|
Right column
|}
Here are some example codes that you can use to make columns of text in your Wikipedia article. You can change the width of your columns by changing the code words that go between the text of your columns. Good luck!
Example 1, using col-break
{{col-begin}}
{{col-break}}
{| class="wikitable" style="width:18em"
|+ Production by year
|-
! 1980
| 50,000
|-
! 1990
| 75,000
|-
! 2000
| 90,000
|}
{{col-break}}
{| class="wikitable" style="width:18em"
|+ Profit by year
|-
! 1980
| $6,000
|-
! 1990
| $7,500
|-
! 2000
| $8,200
|}
{{col-end}}
gives:
Production by year
1980
50,000
1990
75,000
2000
90,000
Profit by year
1980
$6,000
1990
$7,500
2000
$8,200
Example 2, using col-2
{{col-begin}}
{{col-2}}
{| class="wikitable" style="width:18em"
|+ Production by year
|-
! 1980
| 50,000
|-
! 1990
| 75,000
|-
! 2000
| 90,000
|}
{{col-2}}
{| class="wikitable" style="width:18em"
|+ Profit by year
|-
! 1980
| $6,000
|-
! 1990
| $7,500
|-
! 2000
| $8,200
|}
{{col-end}}
gives:
Production by year
1980
50,000
1990
75,000
2000
90,000
Profit by year
1980
$6,000
1990
$7,500
2000
$8,200
Example 3, use col-break with specified widths
{{col-begin}}
{{col-break|width=80%}}
{| class="wikitable" style="width:18em"
|+ Production by year
|-
! 1980
| 50,000
|-
! 1990
| 75,000
|-
! 2000
| 90,000
|}
{{col-break|width=20%}}
{| class="wikitable" style="width:18em"
|+ Profit by year
|-
! 1980
| $6,000
|-
! 1990
| $7,500
|-
! 2000
| $8,200
|}
{{col-end}}
gives:
Production by year
1980
50,000
1990
75,000
2000
90,000
Profit by year
1980
$6,000
1990
$7,500
2000
$8,200
Example 4, use col-break with auto outer width
{{col-begin|width=auto}}
{{col-break}}
{| class="wikitable" style="width:18em"
|+ Production by year
|-
! 1980
| 50,000
|-
! 1990
| 75,000
|-
! 2000
| 90,000
|}
{{col-break|gap=2em}}
{| class="wikitable" style="width:18em"
|+ Profit by year
|-
! 1980
| $6,000
|-
! 1990
| $7,500
|-
! 2000
| $8,200
|}
{{col-end}}